Lantern.



A. J. HULETT.

LANTERN.

APPLICATION FILED JUNE 20, 1912.

1,053,51 1. Patented Feb. 18, 1913.

WWW I ogm UNITED STATES PATENT OFFICE.

ALQNZO'J'. HULETT, 0F KELLETTVILLE, PENNSYLVANIA, ASSIGNOR OF ONE-HALFTO HOMER B. ENSIGN, 0F CORYDON, PENNSYLVANIA.

LANTERN.

Specification of Letters Patent.

Patented Feb. 18, 1913.

Tocll whom it may concern:

Be it known that I, Anoxzo J. HULETT, a citizen of the United States,residing at Kellettville, in the county of Forest and State ofPennsylvania, have invented new and useful Improvements in Lanterns, ofwhich the following is a specification.

This invention relates to lanterns and consists in certain improvementsin the con? struction thereof as will be hereinafter fully described andpointed out in the claims.

The invention relates particularly to a type of lantern in" which ametal flue is provided immediately above the globe, the said flueforming a joint with the top of the globe. Lanterns of this type havebeen on the market and while more eflicient apparently than those ofother types so far as combustion is concerned, lanterns of this kind arevery destructive of the globes used. The object of this invention is toobviate the difficulty as to the breaking of globes with this type oflantern.

The invention is illustrated in the accompanying drawings wherein 1marksthe burner and 2 the globe. A flue 3 is arranged above the globe.This flue slides in a frame 4 which is connected with the side tubes 5of the lantern. A spring 6 is arranged within the frame 4 tensionedagainst the top of it and against a shoulder 7 on the flue 3. Thepurpose of this spring is to yieldingly hold the flue 3 in'contact withthe globe. By lifting the flue against the tension of the spring theglobe may be removed. Y

The flue is provided with a series of openings 8 near its bottom. Theseare provided for better balancing the air and preventing the action ofdrafts which might blow out the lantern. These openings in the flue 3are much more desirable than an opening between the globe and the flueboth with relation to uniformity and position.

As stated in the preamble of this specification this type of lantern hasdemonstrated its efliciency so far as combustion is con cerned.Heretofore, the flue 3 has rested directly on the globe 2 and asheretofore stated, the breakage has been excessive, so much so as toseriously impair the utility of the lantern. This difficulty apparentlyarises from the fact that the air passes in through the openings 8 inthe lower part of the flue and where there are no unusual drafts thereis an inward flow of air all around the flue 3 and a consequent coolingof this flue which cooling is apparently uniform. Under unusualconditions, however, of draft, a pressure is created at one sid of theflue and a suction at the other an instead of an inflow of air at oneside of the flue there is an outflow of gas from the lamp and anabnormal inflow of air at the opposite side of the fine. This results inan abnormally hot portion of the flue at one side and an abnormally coldportion of the flue at the opposite side and this sudden change beingcommunicated to the lobe breaks it. To obviate. this difliculty, I aveprovided an insulating gasket between the bottom of the flue and the topof the'globe. The flue has the annular socket 9 arranged around itsbottom and the gasket 10 is forced into this' socket. This gasket ispreferably of asbestos. The gasket is normally resting against thesocket and against the shoulder 11 on the globe. In this way, the globeis relieved from these fluctuating differences in temperature in theflue and the breakage from' this cause is obviated.

\Vhat I claim as new is:-

1. In a lantern, the combination of a globe; a metal flue extending fromthe top of the globe, said flue having openings near its bottom; and agasket between the bottom of the fine and the top of the globe andforming a joint between the flue and the globe.

2. In a lantern, the combination of a globe; a metal flue extending fromthe top of the globe, said flue having openings therein near its bottomand an annular socket arranged around its bottom; and a gasket fixed inthe socket and forming a joint between the flue and the globe.

3. In a lantern, the combination bf a globe; a metal flue extending fromthe top of the globe, said flue having openings set my hand in thepresence of two subscribnear its bot-tom, the {said flue being bent ingWitnesses. around its bot-tom .orming an annular T r r socket; and agasket fixed in the socket and ALOBZO HULEFF 5 forming a. joint betweenthe flue and the Witnesses:

globe. LEON WATSON, N

In testimony whereof I have hereunto FRANK E. HARKLEss.

